Tameka Foster was due to undergo the cosmetic surgery at Sirio-Libanes Hospital in Sao Paulo, Brazil, on Friday (Feb 6, 2009) but fell seriously ill when she was being anesthetized for the procedure. She was then induced into a coma for 24 hours, and is now said to be recovering.

A spokesman for the hospital refused to comment on the allegations published by Brazilian news website G1, saying: "The family has demanded total privacy. The hospital is barred from giving any information."

It has been claimed US neurosurgeon Gabriel Hunt, who works at the Cedars-Sinai Medical Center in Los Angeles, flew to Sao Paulo to help treat Tameka over the weekend. He left on Monday (Feb 9, 2009) but refused to comment.

Usher canceled concerts in the US and rushed to his wife's side as soon as she fell ill.

His spokeswoman Simone Smalls has not released details on Tameka's illness, only saying: "Tameka is in stable condition. Her husband is with her at the hospital. The family requests privacy at this difficult time."

Simone confirmed Tameka is at Sirio-Libanes Hospital – considered the top medical center in Brazil – adding she had been admitted after suffering "complications from routine surgery."